GB9215657D0 - Remote line tester - Google Patents

Remote line tester

Info

Publication number
GB9215657D0
GB9215657D0 GB929215657A GB9215657A GB9215657D0 GB 9215657 D0 GB9215657 D0 GB 9215657D0 GB 929215657 A GB929215657 A GB 929215657A GB 9215657 A GB9215657 A GB 9215657A GB 9215657 D0 GB9215657 D0 GB 9215657D0
Authority
GB
United Kingdom
Prior art keywords
remote line
line tester
tester
remote
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB929215657A
Other versions
GB2269073B (en
GB2269073A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to GB9215657A priority Critical patent/GB2269073B/en
Publication of GB9215657D0 publication Critical patent/GB9215657D0/en
Priority to DE19934323781 priority patent/DE4323781A1/en
Priority to FR9309030A priority patent/FR2694151B1/en
Publication of GB2269073A publication Critical patent/GB2269073A/en
Application granted granted Critical
Publication of GB2269073B publication Critical patent/GB2269073B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/301—Circuit arrangements at the subscriber's side of the line

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB9215657A 1992-07-23 1992-07-23 Remote line tester Expired - Lifetime GB2269073B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9215657A GB2269073B (en) 1992-07-23 1992-07-23 Remote line tester
DE19934323781 DE4323781A1 (en) 1992-07-23 1993-07-15 Apparatus and method for testing a telephone subscriber loop
FR9309030A FR2694151B1 (en) 1992-07-23 1993-07-22 TELEPHONE SUBSCRIBER LOOP TEST METHOD AND APPARATUS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9215657A GB2269073B (en) 1992-07-23 1992-07-23 Remote line tester

Publications (3)

Publication Number Publication Date
GB9215657D0 true GB9215657D0 (en) 1992-09-09
GB2269073A GB2269073A (en) 1994-01-26
GB2269073B GB2269073B (en) 1996-06-19

Family

ID=10719171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9215657A Expired - Lifetime GB2269073B (en) 1992-07-23 1992-07-23 Remote line tester

Country Status (3)

Country Link
DE (1) DE4323781A1 (en)
FR (1) FR2694151B1 (en)
GB (1) GB2269073B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2285896B (en) * 1994-01-22 1998-04-15 Northern Telecom Ltd Subscriber line testing
GB9403646D0 (en) * 1994-02-25 1994-04-13 Raychem Ltd Switching device for telecommunications channel
GB9718428D0 (en) * 1997-09-02 1997-11-05 Plessey Telecomm Telelcommunications line termination test
GB2329552B (en) * 1997-09-02 2002-04-03 Gpt Ltd Telecommunications line terminator test
FR2830385B1 (en) * 2001-10-01 2006-11-10 France Telecom METHOD AND DEVICE FOR DETECTING AND LOCATING A SYMMETRY FAULT ON A TELEPHONE LINE
DE10226350B4 (en) * 2002-06-13 2004-09-09 Infineon Technologies Ag Method and device for determining the electrical properties of a data line

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054760A (en) * 1976-07-28 1977-10-18 Bell Telephone Laboratories, Incorporated Remote testing of telephone loops
CA1092653A (en) * 1978-09-21 1980-12-30 John C. Ellson Method and apparatus for measuring telephone line
US4186282A (en) * 1978-09-25 1980-01-29 Northern Telecom Limited Method and apparatus for measuring telephone line characteristics
US4415779A (en) * 1981-06-15 1983-11-15 Western Electric Company, Inc. Methods of and apparatus for testing telephone subscriber loop to locate a fault relative to a reference point
US4396809A (en) * 1981-08-03 1983-08-02 Bell Telephone Laboratories, Incorporated Maintenance termination unit
JPH0744604B2 (en) * 1985-05-17 1995-05-15 日本電気株式会社 Subscriber line monitoring circuit
ATE98830T1 (en) * 1987-08-07 1994-01-15 Siemens Ag PROCEDURE FOR MEASURING LINE PARAMETERS OF SUBSCRIPTION LINES IN A TELECOMMUNICATION NETWORK.
GB8822755D0 (en) * 1988-09-28 1988-11-02 Northern Eng Ind Bell capacitance measuring circuit
EP0453825A3 (en) * 1990-04-20 1993-04-28 Siemens Aktiengesellschaft Method for measuring line parameters of subscriber lines of a telephone network
US5054050A (en) * 1990-04-30 1991-10-01 American Telephone & Telegraph Co. Drop testing in fiber to the home systems
US5121420A (en) * 1990-09-17 1992-06-09 Rolm Systems Automatic line defect detector
IT1252125B (en) * 1991-10-23 1995-06-05 Sgs Thomson Microelectronics METHOD AND CIRCUIT DEVICE FOR MEASURING OPERATING PARAMETERS OF AN INTERFACE CIRCUIT AND A USER TELEPHONE LINE CONNECTED TO THEM IN OPERATING CONDITIONS

Also Published As

Publication number Publication date
FR2694151A1 (en) 1994-01-28
GB2269073B (en) 1996-06-19
GB2269073A (en) 1994-01-26
DE4323781A1 (en) 1994-01-27
FR2694151B1 (en) 1996-04-05

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20120722